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What do two question marks together mean in C#?
...te like the ternary (immediate-if) operator. See also ?? Operator - MSDN.
FormsAuth = formsAuth ?? new FormsAuthenticationWrapper();
expands to:
FormsAuth = formsAuth != null ? formsAuth : new FormsAuthenticationWrapper();
which further expands to:
if(formsAuth != null)
FormsAuth = formsA...
Is there a reason that we cannot iterate on “reverse Range” in ruby?
...
When trying to add years to a form, I used: = f.select :model_year, (Time.zone.now.year + 1).downto(Time.zone.now.year - 100).to_a
– Eric Norcross
May 2 '18 at 0:14
...
How do I specify a password to 'psql' non-interactively?
... avoid regularly having to type in passwords. See Section 30.13 for more information.
...
This file should contain lines of the following format:
hostname:port:database:username:password
The password field from the first line that matches the current connection parameters will be used. ...
Android soft keyboard covers EditText field
...scrolled. -->
</LinearLayout>
<ScrollView android:id="@+id/MainForm" >
<!-- Here add your edittexts or whatever will scroll. -->
</ScrollView>
I would typically have a LinearLayout inside the ScrollView, but that is up to you. Also, setting Scrollbar style to outsideIn...
Windows path in Python
...e backslash and the next character in the literal were grouped together to form a single character in the final string. The full list of Python's escape sequences is here.
There are a variety of ways to deal with that:
Python will not process escape sequences in string literals prefixed with r or...
ActiveModel::ForbiddenAttributesError when creating new user
... enum preferred_phone: [:home_phone, :mobile_phone, :work_phone]
end
The form will pass say a radio selector as a string param. That's what happened in my case. The simple fix is to change enum to strings instead of symbols
enum preferred_phone: %w[home_phone mobile_phone work_phone]
# or more ve...
Why is `replace` property deprecated in AngularJS directives? [duplicate]
...
There are issues with ways of coding forms and with SVG elements that needs replace. I agree however, it's harder to debug.
– LessQuesar
Jun 25 '15 at 1:15
...
How to use http.client in Node.js if there is basic authorization
...
An easier solution is to use the user:pass@host format directly in the URL.
Using the request library:
var request = require('request'),
username = "john",
password = "1234",
url = "http://" + username + ":" + password + "@www.example.com";
request(
{
...
Difference between := and = operators in Go
...the variable's type automatically.
For example, foo := 32 is a short-hand form of:
var foo int
foo = 32
// OR:
var foo int = 32
// OR:
var foo = 32
/* There are some rules: */
★ 1st Rule:
You can't use := out of funcs. It's because, out of any func, a statement should start with a keywor...
How to set the first option on a select box using jQuery?
...ect to the option which has the "selected" attribute. Works similar to the form.reset() inbuilt javascript function to the select.
$("#name").val($("#name option[selected]").val());
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